Щас будет тяжело

Forum/Forum/FormAddTopic.Designer.cs

@@ -0,0 +1,82 @@
+namespace Forum
+{
+    partial class FormAddTopic
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.textBoxTopic = new System.Windows.Forms.TextBox();
+            this.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // textBoxTopic
+            // 
+            this.textBoxTopic.Location = new System.Drawing.Point(20, 12);
+            this.textBoxTopic.Name = "textBoxTopic";
+            this.textBoxTopic.Size = new System.Drawing.Size(218, 27);
+            this.textBoxTopic.TabIndex = 0;
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(20, 45);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(94, 29);
+            this.buttonSave.TabIndex = 1;
+            this.buttonSave.Text = "Сохранить";
+            this.buttonSave.UseVisualStyleBackColor = true;
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.Location = new System.Drawing.Point(144, 45);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(94, 29);
+            this.buttonCancel.TabIndex = 2;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // FormAddTopic
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(251, 84);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.textBoxTopic);
+            this.Name = "FormAddTopic";
+            this.Text = "Тема";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private TextBox textBoxTopic;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

Forum/Forum/FormAddTopic.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Forum
+{
+    public partial class FormAddTopic : Form
+    {
+        public FormAddTopic()
+        {
+            InitializeComponent();
+        }
+    }
+}

Forum/Forum/FormAddTopic.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Forum/Forum/FormAddTopics.Designer.cs

@@ -0,0 +1,126 @@
+namespace Forum
+{
+    partial class FormAddTopics
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.dataGridView1 = new System.Windows.Forms.DataGridView();
+            this.textBoxCategory = new System.Windows.Forms.TextBox();
+            this.buttonCreate = new System.Windows.Forms.Button();
+            this.buttonChange = new System.Windows.Forms.Button();
+            this.buttonDelete = new System.Windows.Forms.Button();
+            this.buttonUpdate = new System.Windows.Forms.Button();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // dataGridView1
+            // 
+            this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridView1.Location = new System.Drawing.Point(12, 54);
+            this.dataGridView1.Name = "dataGridView1";
+            this.dataGridView1.RowHeadersWidth = 51;
+            this.dataGridView1.RowTemplate.Height = 29;
+            this.dataGridView1.Size = new System.Drawing.Size(408, 188);
+            this.dataGridView1.TabIndex = 0;
+            // 
+            // textBoxCategory
+            // 
+            this.textBoxCategory.Location = new System.Drawing.Point(12, 12);
+            this.textBoxCategory.Name = "textBoxCategory";
+            this.textBoxCategory.Size = new System.Drawing.Size(125, 27);
+            this.textBoxCategory.TabIndex = 1;
+            // 
+            // buttonCreate
+            // 
+            this.buttonCreate.Location = new System.Drawing.Point(435, 54);
+            this.buttonCreate.Name = "buttonCreate";
+            this.buttonCreate.Size = new System.Drawing.Size(94, 29);
+            this.buttonCreate.TabIndex = 2;
+            this.buttonCreate.Text = "Создать";
+            this.buttonCreate.UseVisualStyleBackColor = true;
+            this.buttonCreate.Click += new System.EventHandler(this.buttonCreate_Click);
+            // 
+            // buttonChange
+            // 
+            this.buttonChange.Location = new System.Drawing.Point(435, 89);
+            this.buttonChange.Name = "buttonChange";
+            this.buttonChange.Size = new System.Drawing.Size(94, 29);
+            this.buttonChange.TabIndex = 3;
+            this.buttonChange.Text = "Изменить";
+            this.buttonChange.UseVisualStyleBackColor = true;
+            this.buttonChange.Click += new System.EventHandler(this.buttonChange_Click);
+            // 
+            // buttonDelete
+            // 
+            this.buttonDelete.Location = new System.Drawing.Point(435, 124);
+            this.buttonDelete.Name = "buttonDelete";
+            this.buttonDelete.Size = new System.Drawing.Size(94, 29);
+            this.buttonDelete.TabIndex = 4;
+            this.buttonDelete.Text = "Удалить";
+            this.buttonDelete.UseVisualStyleBackColor = true;
+            this.buttonDelete.Click += new System.EventHandler(this.buttonDelete_Click);
+            // 
+            // buttonUpdate
+            // 
+            this.buttonUpdate.Location = new System.Drawing.Point(435, 159);
+            this.buttonUpdate.Name = "buttonUpdate";
+            this.buttonUpdate.Size = new System.Drawing.Size(94, 29);
+            this.buttonUpdate.TabIndex = 5;
+            this.buttonUpdate.Text = "Обновить";
+            this.buttonUpdate.UseVisualStyleBackColor = true;
+            this.buttonUpdate.Click += new System.EventHandler(this.buttonUpdate_Click);
+            // 
+            // FormAddTopic
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(536, 253);
+            this.Controls.Add(this.buttonUpdate);
+            this.Controls.Add(this.buttonDelete);
+            this.Controls.Add(this.buttonChange);
+            this.Controls.Add(this.buttonCreate);
+            this.Controls.Add(this.textBoxCategory);
+            this.Controls.Add(this.dataGridView1);
+            this.Name = "FormAddTopic";
+            this.Text = "Добавление тем";
+            this.Load += new System.EventHandler(this.FormAddTopic_Load);
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private DataGridView dataGridView1;
+        private TextBox textBoxCategory;
+        private Button buttonCreate;
+        private Button buttonChange;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+    }
+}

Forum/Forum/FormAddTopics.cs

@@ -0,0 +1,78 @@
+using ForumContracts.BusinessLogicContracts;
+using ForumContracts.SearchModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Forum
+{
+    public partial class FormAddTopics : Form
+    {
+        private readonly ICategoryLogic _categoryLogic;
+        private readonly ITopicLogic _topicLogic;
+        private int? _id;
+        public int Id { set { _id = value; } }
+        public FormAddTopics(ITopicLogic topicLogic, ICategoryLogic categoryLogic)
+        {
+            InitializeComponent();
+            _topicLogic = topicLogic;
+            _categoryLogic = categoryLogic;
+        }
+
+        private void FormAddTopic_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                var view = _categoryLogic.ReadElement(new CategorySearchModel { Id = _id.Value });
+
+                if (view != null)
+                {
+                    textBoxCategory.Text = view.Name;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCreate_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormAddTopic));
+
+            if (service is FormAddTopic form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+
+        private void LoadData()
+        {
+            throw new NotImplementedException();
+        }
+
+        private void buttonChange_Click(object sender, EventArgs e)
+        {
+
+        }
+
+        private void buttonDelete_Click(object sender, EventArgs e)
+        {
+
+        }
+
+        private void buttonUpdate_Click(object sender, EventArgs e)
+        {
+
+        }
+    }
+}

Forum/Forum/FormAddTopics.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Forum/Forum/FormCategories.Designer.cs

@@ -0,0 +1,128 @@
+namespace Forum
+{
+    partial class FormCategories
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.dataGridView = new System.Windows.Forms.DataGridView();
+            this.buttonCreate = new System.Windows.Forms.Button();
+            this.buttonChange = new System.Windows.Forms.Button();
+            this.buttonDelete = new System.Windows.Forms.Button();
+            this.buttonUpdate = new System.Windows.Forms.Button();
+            this.buttonAddTopicInCategory = new System.Windows.Forms.Button();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridView.Location = new System.Drawing.Point(12, 12);
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowHeadersWidth = 51;
+            this.dataGridView.RowTemplate.Height = 29;
+            this.dataGridView.Size = new System.Drawing.Size(300, 188);
+            this.dataGridView.TabIndex = 0;
+            // 
+            // buttonCreate
+            // 
+            this.buttonCreate.Location = new System.Drawing.Point(330, 12);
+            this.buttonCreate.Name = "buttonCreate";
+            this.buttonCreate.Size = new System.Drawing.Size(94, 29);
+            this.buttonCreate.TabIndex = 1;
+            this.buttonCreate.Text = "Создать";
+            this.buttonCreate.UseVisualStyleBackColor = true;
+            this.buttonCreate.Click += new System.EventHandler(this.buttonCreate_Click);
+            // 
+            // buttonChange
+            // 
+            this.buttonChange.Location = new System.Drawing.Point(330, 47);
+            this.buttonChange.Name = "buttonChange";
+            this.buttonChange.Size = new System.Drawing.Size(94, 29);
+            this.buttonChange.TabIndex = 2;
+            this.buttonChange.Text = "Изменить";
+            this.buttonChange.UseVisualStyleBackColor = true;
+            this.buttonChange.Click += new System.EventHandler(this.buttonChange_Click);
+            // 
+            // buttonDelete
+            // 
+            this.buttonDelete.Location = new System.Drawing.Point(330, 82);
+            this.buttonDelete.Name = "buttonDelete";
+            this.buttonDelete.Size = new System.Drawing.Size(94, 29);
+            this.buttonDelete.TabIndex = 3;
+            this.buttonDelete.Text = "Удалить";
+            this.buttonDelete.UseVisualStyleBackColor = true;
+            this.buttonDelete.Click += new System.EventHandler(this.buttonDelete_Click);
+            // 
+            // buttonUpdate
+            // 
+            this.buttonUpdate.Location = new System.Drawing.Point(330, 117);
+            this.buttonUpdate.Name = "buttonUpdate";
+            this.buttonUpdate.Size = new System.Drawing.Size(94, 29);
+            this.buttonUpdate.TabIndex = 4;
+            this.buttonUpdate.Text = "Обновить";
+            this.buttonUpdate.UseVisualStyleBackColor = true;
+            this.buttonUpdate.Click += new System.EventHandler(this.buttonUpdate_Click);
+            // 
+            // buttonAddTopicInCategory
+            // 
+            this.buttonAddTopicInCategory.Location = new System.Drawing.Point(330, 152);
+            this.buttonAddTopicInCategory.Name = "buttonAddTopicInCategory";
+            this.buttonAddTopicInCategory.Size = new System.Drawing.Size(94, 54);
+            this.buttonAddTopicInCategory.TabIndex = 5;
+            this.buttonAddTopicInCategory.Text = "Добавить темы";
+            this.buttonAddTopicInCategory.UseVisualStyleBackColor = true;
+            this.buttonAddTopicInCategory.Click += new System.EventHandler(this.buttonAddTopicInCategory_Click);
+            // 
+            // FormCategories
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(438, 211);
+            this.Controls.Add(this.buttonAddTopicInCategory);
+            this.Controls.Add(this.buttonUpdate);
+            this.Controls.Add(this.buttonDelete);
+            this.Controls.Add(this.buttonChange);
+            this.Controls.Add(this.buttonCreate);
+            this.Controls.Add(this.dataGridView);
+            this.Name = "FormCategories";
+            this.Text = "Категории";
+            this.Load += new System.EventHandler(this.FormCategories_Load);
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonCreate;
+        private Button buttonChange;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+        private Button buttonAddTopicInCategory;
+    }
+}

Forum/Forum/FormCategories.cs

@@ -0,0 +1,129 @@
+using ForumContracts.BindingModels;
+using ForumContracts.BusinessLogicContracts;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Forum
+{
+    public partial class FormCategories : Form
+    {
+        private readonly ICategoryLogic _categoryLogic;
+        public FormCategories(ICategoryLogic categoryLogic)
+        {
+            InitializeComponent();
+            _categoryLogic = categoryLogic;
+        }
+
+
+        private void buttonCreate_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormCategory));
+
+            if (service is FormCategory form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _categoryLogic.ReadList(null);
+
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["Name"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+            }
+            catch (Exception)
+            { }
+        }
+
+        private void FormCategories_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void buttonDelete_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+                    try
+                    {
+                        if (!_categoryLogic.Delete(new CategoryBindingModel
+                        {
+                            Id = id
+                        }))
+                        {
+                            throw new Exception("Ошибка при удалении.");
+                        }
+
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void buttonChange_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormCategory));
+
+                if (service is FormCategory form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void buttonUpdate_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void buttonAddTopicInCategory_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormAddTopics));
+
+                if (service is FormAddTopics form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+    }
+}

Forum/Forum/FormCategories.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Forum/Forum/FormCategory.Designer.cs

@@ -0,0 +1,85 @@
+namespace Forum
+{
+    partial class FormCategory
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.textBoxCategory = new System.Windows.Forms.TextBox();
+            this.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // textBoxCategory
+            // 
+            this.textBoxCategory.Location = new System.Drawing.Point(12, 12);
+            this.textBoxCategory.Name = "textBoxCategory";
+            this.textBoxCategory.Size = new System.Drawing.Size(194, 27);
+            this.textBoxCategory.TabIndex = 0;
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(12, 45);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(94, 29);
+            this.buttonSave.TabIndex = 1;
+            this.buttonSave.Text = "Сохранить";
+            this.buttonSave.UseVisualStyleBackColor = true;
+            this.buttonSave.Click += new System.EventHandler(this.buttonSave_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.Location = new System.Drawing.Point(112, 45);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(94, 29);
+            this.buttonCancel.TabIndex = 2;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.buttonCancel_Click);
+            // 
+            // FormCategory
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(222, 82);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.textBoxCategory);
+            this.Name = "FormCategory";
+            this.Text = "Категория";
+            this.Click += new System.EventHandler(this.FormCategory_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private TextBox textBoxCategory;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

Forum/Forum/FormCategory.cs

@@ -0,0 +1,88 @@
+using ForumContracts.BindingModels;
+using ForumContracts.BusinessLogicContracts;
+using ForumContracts.SearchModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Forum
+{
+    public partial class FormCategory : Form
+    {
+        private readonly ICategoryLogic _categoryLogic;
+
+        private int? _id;
+        public int Id { set { _id = value; } }
+        public FormCategory(ICategoryLogic categoryLogic)
+        {
+            InitializeComponent();
+            _categoryLogic = categoryLogic;
+
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxCategory.Text))
+            {
+                MessageBox.Show("Введите название роли", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+                return;
+            }
+            try
+            {
+                var model = new CategoryBindingModel
+                {
+                    Id = _id ?? 0,
+                    Name = textBoxCategory.Text
+                };
+
+                var operationResult = _id.HasValue ? _categoryLogic.Update(model) : _categoryLogic.Create(model);
+
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранеии.");
+                }
+
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void FormCategory_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                try
+                {
+                    var view = _categoryLogic.ReadElement(new CategorySearchModel { Id = _id.Value });
+
+                    if (view != null)
+                    {
+                        textBoxCategory.Text = view.Name;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+    }
+}

Forum/Forum/FormCategory.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Forum/Forum/FormMain.Designer.cs

@@ -32,6 +32,7 @@
             this.menuStrip1 = new System.Windows.Forms.MenuStrip();
             this.ролиToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.пользователиToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.категорииToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
             this.menuStrip1.SuspendLayout();
             this.SuspendLayout();
@@ -51,7 +52,8 @@
             this.menuStrip1.ImageScalingSize = new System.Drawing.Size(20, 20);
             this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
             this.ролиToolStripMenuItem,
-            this.пользователиToolStripMenuItem});
+            this.пользователиToolStripMenuItem,
+            this.категорииToolStripMenuItem});
             this.menuStrip1.Location = new System.Drawing.Point(0, 0);
             this.menuStrip1.Name = "menuStrip1";
             this.menuStrip1.Size = new System.Drawing.Size(800, 28);
@@ -72,6 +74,13 @@
             this.пользователиToolStripMenuItem.Text = "Пользователи";
             this.пользователиToolStripMenuItem.Click += new System.EventHandler(this.пользователиToolStripMenuItem_Click);
             // 
+            // категорииToolStripMenuItem
+            // 
+            this.категорииToolStripMenuItem.Name = "категорииToolStripMenuItem";
+            this.категорииToolStripMenuItem.Size = new System.Drawing.Size(96, 24);
+            this.категорииToolStripMenuItem.Text = "Категории";
+            this.категорииToolStripMenuItem.Click += new System.EventHandler(this.категорииToolStripMenuItem_Click);
+            // 
             // FormMain
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
@@ -96,5 +105,6 @@
         private MenuStrip menuStrip1;
         private ToolStripMenuItem ролиToolStripMenuItem;
         private ToolStripMenuItem пользователиToolStripMenuItem;
+        private ToolStripMenuItem категорииToolStripMenuItem;
     }
 }

Forum/Forum/FormMain.cs

@@ -26,5 +26,15 @@ namespace Forum
                 form.ShowDialog();
             }
         }
+
+        private void êàòåãîðèèToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormCategories));
+
+            if (service is FormCategories form)
+            {
+                form.ShowDialog();
+            }
+        }
     }
 }

Forum/Forum/FormUser.cs

@@ -1,5 +1,6 @@
 using ForumContracts.BindingModels;
 using ForumContracts.BusinessLogicContracts;
+using ForumContracts.SearchModels;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -16,6 +17,9 @@ namespace Forum
     {
         private readonly IUserLogic _userLogic;
         private readonly IRoleLogic _roleLogic;
+
+        private int? _id;
+        public int Id { set { _id = value; } }
         public FormUser(IRoleLogic roleLogic, IUserLogic userLogic)
         {
             InitializeComponent();
@@ -47,14 +51,16 @@ namespace Forum
             }
             try
             {
-                var operationResult = _userLogic.Create(new UserBindingModel
+                var model = new UserBindingModel
                 {
+                    Id = _id ?? 0,
                     Username = textBoxUsername.Text,
                     Email = textBoxLogin.Text,
                     Password = textBoxPassword.Text,
                     RegistrationDate = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc),
                     RoleId = Convert.ToInt32(comboBoxSelectRole.SelectedValue),
-                });
+                };
+                var operationResult = _id.HasValue ? _userLogic.Update(model) : _userLogic.Create(model);
                 if (!operationResult)
                 {
                     throw new Exception("Ошибка при создании пользователя.");
@@ -76,6 +82,29 @@ namespace Forum
         }
 
         private void FormUser_Load(object sender, EventArgs e)
+        {
+            LoadData();
+            if (_id.HasValue)
+            {
+                try
+                {
+                    var view = _userLogic.ReadElement(new UserSearchModel { Id = _id.Value });
+
+                    if (view != null)
+                    {
+                        textBoxLogin.Text = view.Email;
+                        textBoxPassword.Text = view.Password;
+                        textBoxUsername.Text = view.Username;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void LoadData()
         {
             try
             {

Forum/Forum/FormUsers.cs

@@ -1,4 +1,6 @@
-using ForumContracts.BusinessLogicContracts;
+using ForumBusinessLogic;
+using ForumContracts.BindingModels;
+using ForumContracts.BusinessLogicContracts;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -59,12 +61,48 @@ namespace Forum
 
         private void buttonChange_Click(object sender, EventArgs e)
         {
-            this.Close();
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormUser));
+
+                if (service is FormUser form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
         }
 
         private void buttonDelete_Click(object sender, EventArgs e)
         {
-            this.Close();
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+                    try
+                    {
+                        if (!_userLogic.Delete(new UserBindingModel
+                        {
+                            Id = id
+                        }))
+                        {
+                            throw new Exception("Ошибка при удалении.");
+                        }
+
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
         }
 
         private void buttonUpdate_Click(object sender, EventArgs e)

Forum/Forum/Program.cs

@@ -44,6 +44,10 @@ namespace Forum
             services.AddTransient<FormRole>();        
             services.AddTransient<FormUsers>();        
             services.AddTransient<FormUser>();        
+            services.AddTransient<FormCategories>();        
+            services.AddTransient<FormCategory>();        
+            services.AddTransient<FormAddTopics>();        
+            services.AddTransient<FormAddTopic>();        
         }
     }
 }

Forum/ForumContracts/SearchModels/TopicSearchModel.cs

@@ -8,7 +8,7 @@ namespace ForumContracts.SearchModels
 {
     public class TopicSearchModel
     {
-        public int Id { get; set; }
+        public int? Id { get; set; }
         public string? Name { get; set; }
     }
 }

Forum/ForumDatabase/Implements/CategoryStorage.cs

@@ -2,6 +2,7 @@
 using ForumContracts.SearchModels;
 using ForumContracts.StoragesContracts;
 using ForumContracts.ViewModels;
+using ForumDatabase.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -14,32 +15,77 @@ namespace ForumDatabase.Implements
     {
         public CategoryViewModel? Delete(CategoryBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new ForumDatabase();
+            var element = context.Categories.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Categories.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
         }
 
         public CategoryViewModel? GetElement(CategorySearchModel model)
         {
-            throw new NotImplementedException();
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ForumDatabase();
+            return context.Categories
+                .FirstOrDefault(x =>
+                (!string.IsNullOrEmpty(model.Name) && x.Name ==
+                model.Name) ||
+                (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
         }
 
         public List<CategoryViewModel> GetFilteredList(CategorySearchModel model)
         {
-            throw new NotImplementedException();
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new ForumDatabase();
+            return context.Categories
+                .Where(x => x.Name.Contains(model.Name))
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public List<CategoryViewModel> GetFullList()
         {
-            throw new NotImplementedException();
+            using var context = new ForumDatabase();
+            return context.Categories
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public CategoryViewModel? Insert(CategoryBindingModel model)
         {
-            throw new NotImplementedException();
+            var newCategory = Category.Create(model);
+            if (newCategory == null)
+            {
+                return null;
+            }
+            using var context = new ForumDatabase();
+            context.Categories.Add(newCategory);
+            context.SaveChanges();
+            return newCategory.GetViewModel;
         }
 
         public CategoryViewModel? Update(CategoryBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new ForumDatabase();
+            var component = context.Categories.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
         }
     }
 }

Forum/ForumDatabase/Implements/TopicStorage.cs

@@ -2,6 +2,7 @@
 using ForumContracts.SearchModels;
 using ForumContracts.StoragesContracts;
 using ForumContracts.ViewModels;
+using ForumDatabase.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -14,32 +15,77 @@ namespace ForumDatabase.Implements
     {
         public TopicViewModel? Delete(TopicBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new ForumDatabase();
+            var element = context.Topics.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Topics.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
         }
 
         public TopicViewModel? GetElement(TopicSearchModel model)
         {
-            throw new NotImplementedException();
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ForumDatabase();
+            return context.Topics
+                .FirstOrDefault(x =>
+                (!string.IsNullOrEmpty(model.Name) && x.Name ==
+                model.Name) ||
+                (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
         }
 
         public List<TopicViewModel> GetFilteredList(TopicSearchModel model)
         {
-            throw new NotImplementedException();
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new ForumDatabase();
+            return context.Topics
+                .Where(x => x.Name.Contains(model.Name))
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public List<TopicViewModel> GetFullList()
         {
-            throw new NotImplementedException();
+            using var context = new ForumDatabase();
+            return context.Topics
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public TopicViewModel? Insert(TopicBindingModel model)
         {
-            throw new NotImplementedException();
+            var newTopic = Topic.Create(model);
+            if (newTopic == null)
+            {
+                return null;
+            }
+            using var context = new ForumDatabase();
+            context.Topics.Add(newTopic);
+            context.SaveChanges();
+            return newTopic.GetViewModel;
         }
 
         public TopicViewModel? Update(TopicBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new ForumDatabase();
+            var component = context.Topics.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
         }
     }
 }